import java.util.Scanner;

public class Main1959 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int x=sc.nextInt();
        if (x>=90){
            System.out.println("Excellen");
        }else if (x>=80&&x<90){
            System.out.println("Good");
        }else if (x>=60&&x<80){
            System.out.println("Pass");
        }

    }
}
